Suspension device for maps and the like



July 3, 1928; 1,675,515

C. PEDERSEN SUSPENSION DEVICE FOR MAPS AND THE LIKE Filed March 26, 1927 7 lulu/ 4111110.

aw 20mm tive checked map it is sufficient to pull it down Patented July 3, 1928.

PATENT OFFICE.

CHRISTIAN PEDERSEN, OF UGLEDIGE, NEAR ALLERSLEV, DENMARK.

SUSPENSION DEVICE FOR MAPSAND THE LIKE.

Application filed March 26,1927, Serial No. 178,787, and in Denmark March 29, 1926.

This invention relates to a device for suspending maps and the like and is intended chiefly for use in schools. The maps must, however, have wooden rods at the lower rim, as is generally the case with maps for schools. The device may be afiixed to a board that is to be attached to the respective wall, or may besecured directly to that wall. It can be used in connection with maps of several sizes, and can wind up the map automatically into its position of rest in which the map forms a cylindrical body. The map can be opened to any desired extent and can then be secured in the respecnosition. In order to release the wards a little, as is more fully described hereinafter.

The invention is illustrated diagrammatically and by way of example on the accompanying drawing on which Figure 1 is a. front-view of the device, Figure 2' a cross section through one (the lefthand in Fig. 1) of two clampingbows, together with a front view of the appertaining wooden rod,

this figure being drawn to an enlarged scale, and Figure 3 is a cross-section in line I--I of Fig. 1, also drawn to an enlarged scale.

On the drawing, 1 denotes a board having eyes 2 by which it can be suspended from a wall or the like. On thelefthand end of the board 1 is a casing 4 held by bows 3, and within this casing is a springactuatcd wheel-work of the kind used in connection with roller-blinds for winding them up automatically. I have abstained from showing this winding device in detail becauseit is known and does not form a part of this invention. A pivot-like shaft 5 projects forth from the casing 4, and to it is aflixed a clamping bow 6 provided with a clamping screw 7 that extends through the two arms 9 of the bow and is provided with a wing-nut 8. The arms 9 are so curved (Fig. 2) that they can hold securely the rod 10 which is connected with the upper rim of the map 11. A similar clamping member 12 as that just described is provided at the right hand end of the board 1 and has a like, comprising, incombination, two oppositely located. clamping bows adapted to receive and hold fast the rod attached to the upper rim of the map, one of said bows being adjustable with respect to the other bow according to the length of said rod, and

an automatic winding and checking device connected with the other clamping bow, substantially as described.

v2. A suspension device for maps and the like, comprising, in combination, two oppositely located clamping bows adapted to re eive and hold fast the rod attached to the upper rim of the map, a slide to which one of said bows is attached and which can be adjusted with respect to the other how, an automatic winding and checking device connected with this other bow, and a board to which said winding and checking device is attached and upon which said slide can be shifted, substantially as described.

3. A suspension device for maps and the like, comprising, in combination, two oppositely located clamping bows adapted to receive and hold fast the rod attached to the upper rim of the map, one of said bows being adjustable with respect to the other bow according tothe length of said rod, and an automatic winding and checking device con nected with the other clamping how, the arms of both clamping bows being so curved as to be adapted to hold fast securely the round map bar, substantially as described.

In testimony whereof I afiix my signature.

CHRISTIAN PEDERSEN. 

